<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>函数柯里化</title>
</head>
<body>
</body>
<script type="text/javascript">
    function sum(a) {
        return (b) => {
            return (c) => {
                return a + b + c
            }
        }
    }

    const result = sum(1)(2)(3)
    console.log(result)
</script>
</html>